Nothing is for free! If you want to sell many websites you could offer a service on CPAElites - You always need investment!
By the way are you selling the website code & design OR the website with domain??

Yes Filippa is last option. Currently website is making $30 month and it is on 16th rank for money making keyword. So confused whether to put SEO effort to rank it top 3 or sell out if I get good amount. I am not able to give time for CPA due to offline work. So wanted to check out offers from buyer for FREE before I make my mind whether to continue or sell out through paid listing.